Maguire Products Weigh Scale Blender WSB, Operation & Maintenance Manual

Page: 53 / 99

M A G U I R E P R O D U C T S , I N C .
Edition: August 5, 2014
53
W E I G H S C A L E B L E N D E R
®
several attempts at a dispense, such as regrind, but you wish the process to continue even
without the component.
00021 to 00029
= same as 1 to 9, Stop Process, Sound Alarm, but NO more retries. Just
sound alarm and wait. Press the RESET button to clear alarm and start the retries again.
Appropriate ONLY if you absolutely want operator intervention to occur when material runs
low. In other words you do not want any automatic loading or other correction to allow the
process to continue.
00031 to 00039 =
DO NOT sound alarm. After specified number of retries stop the retries and
continue with the remainder of the cycle. The last digit determines the number of retries before
continuing with the process. This would be appropriate if you wish to make several attempts at a
dispense, such as regrind, but you wish the process to continue without any alarm indication.
The first three digits of this parameter (_AL xxx00) may be used to STOP and ALARM the
blender if an over dispense occurs by a specified number of grams or percent. To specify
grams, enter 001 through 499 in the first three digits. To enable percent, entering “5” in the
first digit. When percent is enabled, the 2
nd
and 3
rd
digits are the percent (01 – 99). In the
first digit of the _AL parameter, 6 – 9 are invalid digits.
Specified grams example: 4AL 02004 will cause the system to STOP and ALARM if the
fourth component dispense is 20 grams over target. (4 - OVER) will be displayed.
Specified percent example: 4AL 50504 will cause the system to STOP and ALARM if the
fourth component dispense is 5% over target. (4 - OVER) will be displayed.
Use PAUSE (or POWER OFF) to reset the Alarm condition. If a printer is connected, a
standard cycle printout will occur.
LA
Lag Alarm - Change if you change metering device
_LA is the lag TIME before dumping actually starts. This lagtime is the time it takes for the
dispense system to mechanically respond to the controller's signal to start. Lag time is
automatically added to all dispense times.
Changing the means by which a device is operated such as using a different diameter air
cylinder, or a different drive system for an auger feeder may require a change in this
parameter.
These parameters represent the number of interrupts (time) that pass before the feeder or
dispense system actually begins to dispense. There are 244 interrupts per second. To
determine these times, use the TIME dispense function in the Manual mode (KEYPAD
instructions).
Following the instructions given in the KEYPAD portion of the manual (TIME key), start
with a dispense time of 1 (001). Try successively higher time numbers until some
movement is noted in the mechanical device and a minimum amount of material IS
dispensed on each try. This is the MINIMUM lag time number; the lowest number that
DOES cause some movement and DOES result in a minimum dispense. Add 5 to this time
period and enter as the lag time. Lag times that are too short can cause problems. That is
why the MINIMUM lag time determined above should be increased by 5 as a safety factor.